Oil clarifying and circulating system and apparatus.



W. L. MORRIS.

OIL CLARIFYING AND CIRCULATING SYSTEM AND APPARATUS.

APPLICATION FILED SEPT- 4, 1914.

1 1 86,220. Patent'ed June 6, 1916.

WILLIAM. L. antennas, on near WAYNE, .Innrana.

on. cnenrrnne ann crncnmrrne SYSTEM AND APPARATUS.

Specification of Letters Patent.

Application filed September 4, 1914. Serial Nc. 860,158.

T 0 all whom it may concern:

Be it known thatI, WILLIAM L. Monms, a citizen of the United States, residing at Fort lVayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in Oil Clarifying and Circulating Systems and Apparatus, of which the following is a specification.

This invention relates to a system and apparatus of the class described in which the various reservoirs, and the circulating and clarifying devices are connected and arranged to effect and facilitate the movement of the fiuid to be filtered and circulated and to provide for the changing of connections whereby one or more of the devices may be cut out of the system for cleaning or repair without impairing the operation of the system as a whole.

For the attainment of these ends and the accomplishment of other new and useful objects, as will appear, the invention consists in the features of novelty in the construction, combination and arrangement of the several parts generally shown in the accom panying drawings and described in the specification, but more particularly pointed out in the appended claims.

in the drawin s Fi ure 1 is a dia ram matic view illustrating the principal features .of a system, and the principal parts or elements embodying my invention, and Fig. 2 is a view in elevation of the separator shown in Fig. 1.

This invention comprises aclean oil storage tank 1 which maybe either a gravity tank above the other parts of theapparatus or maybe of. the closed pressure type to which the fluid is pumped under pressure. A storage or drip receiving tank 2 is at the lowest elevation of the system and to it is fed the oil which is returned by the drips and from the journals or other oil using devices, through a separator 3. A settling tank 4 is preferably disposed at an elevation between the drip and gravity tanks and adacent the settling tank, preferably incorporated therein, are oil clarifying devices 5,

comprising filters 6. Communicating with the. interior of the filters 6 by means of a tubular connection 7 is a standpipe 8 and oil fluid is delivered to the stand pipe and to.

other points of the system by either' or both of duplicate pumps 9.

Each of the pumps .9 preferably consists of a power element or cylinder 10, which, in

' case it' is a steam pump, is provided with an exhaust 11 leading to the atmosphere or Patented June 8, 1916.

with a connection to a steam jacket 12 of the stand pipe 8. Each pump also comprises a pair of cylinders 13 and 14 one ofwhich is connected by means of a tubular connection .15 with the drip tank 2 at adistance from the bottom thereof. Connected with the tubular connection 15 by means of a three-way valve 16 is a sump pipe 17 which takes the good liquid from the bottom of the drip tank. This connection 15 is common to both or all of the corresponding cylinders of the pumps, and connected with each of the tubular connections to the pumps by means of a three-way valve 18 is a pipe 19 which leads to a floating suction device 20 in the drip tank and comprises a pipe 21 pivoted at one end and connected with the pipe 19 and open at the other end near the float so as to take the liquid from adjacent the surface of the liquid in the drip tank 2. Thus it will be seen that each pump may take liquid from the bottom, an intermediate point, or

the top surface of the liquid in the drip tank. The discharge of each pump cylinder 13 is connected by means of a three-way valve 22 with a tubular connection 23 which leads to the stand pipe, or with a pipe 24 which leads to a sewer connection 25 or by means of a valve 26 discharges into a funnel 27 with a non-agitating spreader 28 into the settling tank 4. A receptacle 29 is preferably formed in the storage tank 4 for containing the clarified oil from the filters 6, and the tubular connection 7 which communicates with the interior.;of'.each filter element 6 extends through the bottom of the receptacle 29; The clarified oil may be discharged directly from the receptacle 29 to the settling tank 4 through a valved pipe 30, and a pipe 31 extends upwardly through the receptacle 29 to a point adjacent the top thereof, and preferably above the filter proper, and is connected to each of the pump cylinders 14. The discharge of each pump cylinder 14 is connected by means of a valved pipe 32 with a pipe 33, having a valve 34 through which fluid is pumped to an outgoing main 35. This main 35 is also connected through a valve 36 with a pipe37 gravity tank 1 at a point above the bottom thereof. Thus the outgoing main may be fed either from the pumps or from the gravity tank 1 or from both together, by simply manipulating the valves 34 and 36. Each discharge pipe 32 is also connected through a valve 38 with a pipe 39 leading to the bottom of the storage tank 1 and by means of a valved pipe 40 provision is made for discharging into the funnel 27 of the set tling tank. Thus by closing the valve 38 the gravity tank may discharge through the pipe 39 and through the valved pipe 40 di rectly into the settling tank.

To the separator 3 at one end of the drip tank is connected a drip return main 41 which represents the means for returning all of the oil after it has been usedby the various oil using devices. Within the separator is a depending discharge pipe 42 connected to the drip return main by a threeway valve 43 and a level top overflow is connectedto the main 41 on the side of the valve 43 opposite the inlet, the drip return main 41 extending clear through the separator chamber and into the drip tank 2, so that when the three-way valve 43 is in one position it discharges from the main 41 to the depending pipe 42. At this time the outlet for the liquid for the. chamber of the separator is by way of the.level top overflow 44 and through the end of the pipe 41 into the drip tank 2. It may be desirable, however, to position the valve so that the liquid will pass directly from the main into the drip tank 2 and not through the depending pipe 42.

At the inner end of the drip return main 41 and in the drip tank 2 is a screen pail 45 which presents a relatively large discharge surface for admitting oil to the drip tank without agitating the contents of the drip tank. 3

In the standpipe 8 is an overflow discharge pipe 46 which leads to the receptacle 29 in which the filters 6 are located. A level top overflow 47 at the top of the gravity tank 1' is connected by means of a pipe 48 with the drip return main 41 and has a connection 49 which extends into the receptacle 29 and above the normal level of liquid in this clean oil receptacle and above the normal level of the pump drawoff pipe 31. Also connected to this pipe 48 is a pipe 50 which leads to a swivel drawofi in the settling tank 4. This drawoif consists of a pivoted drawolf pipe 51 having a coun" terbalance 52 with a handwheel 53 for ro-- casing 54 so that the handwheel 53 may be' easily accessible for rotating the drawolf pipe 51. It is seen therefore that all of the inaaaao overflows or discharges and all of the drip connections are connected ultimately with the drip return main 41.

One of the principal objects of the separator 3 is to extract the water from the re turned-liquid. The preferred manner of accomplishing this is to connect an upright pipe 57 (see Fig. 2) with the separator chamber adjacent the bottom thereof and outside of the separator, and to provide it with an adjustable level top overflow 58 below which is a receiving cup 59 with a:

tubular connection 60 leading to the sewer. A gage 61 is commonly provided to show the height of water in the chamber of the separator 3 so that the overflow 58 can be adjusted to a proper position for removing the water. A cleanout plug 62 is commonly provided at the bottom of the separator. A hand pump 63 is preferably provided in connection with the settling tank 4 which is adapted to discharge directly into the funnel 27 and is for the purpose of withdrawing liquid from the settling tank, preferably from the bottom thereof, for use other than in the circulating system.

A cleanliness indicator for the clarifying device, and particularly for the filters, comprisesa gage 64 attached to the stand pipe 8 which shows the height of liquid within the stand-pipe. By observing the height of liquid in the stand pipe it will be seen how rapidly the filters are disposing offl the liquid which passes through them.

it the height of the liquid in the stand pipe is above a predetermined amount, the filters are not disposing of theliquid with sufiicient rapidity.

The capacity of the pump or cylinder which discharges liquid to the stand pipe 8 is preferably greater than the capacity of the pump or cylinder which takes liquid from the receptacle 29, so that there will be no danger of the clean oil receptacle 29 running dry, and the overflow pipe 45 is disposed in the clean oil receptacle 29 so that ifa surplus of clean oil should accumulate in the receptacle 29 it will not overflow the receptacle but will be discharged to the drip return main. Each pump preferably comprises a power cylinder with an oil pumping cylinder connected to each end of the pump piston.

In operation the oil may be fed to thedistributing or circulating main 35 either from the gravity tank 1. or directly from the pumps. Each pump will operate to take liquid from the clarifying device and discharge it through the valve 34 to the distributing main 35, or through the valve 38 to the gravity tank 1. lhe gravity tank may be cleaned without interfering with the operation of the pumps by discharging the liquid therefrom through the pipe 39 and through the valve pipe 40 into the settling tank 4:. Each pump also operates to draw liquid from the bottom, the top, or an intermediate point in the drip tank and to discharge this liquid either to the stand pipe 8, to the sewer 25through the pipe 24, or

into the settling tank 4 through the valve 26. The liquid from the settling tank may be drawn off at any level and discharged by gravity directly into the drip tank 2 or through the separator 3 and the level top overflow 44 into the drip tank. Since more liquid is delivered to the stand pipe than is withdrawn from the clean oil receptacle 29 the surplus'may be discharged to the drip main and in any case none of the oil will be lost. All of the oil is returned by means of the drip return main to the drip tank from which it is used and circulated as desired and as explained above. It is believed that no further explanation of the operation of the apparatus or of this system will be necessary.

What I claim is:

1. The combination with an oil supply tank of a drip tank, a clarifying device at an elevation between the supply tank and the drip tank and a pump with cylinders taking oil from the drip tank and delivering it to the clarifying device and another cylinder taking oil from the clarifying device and discharging it to the supply tank.

2. The combination with a clean oil supply tank and a drip receiving tank of a clarifying device which discharges clarified liquid at atmospheric pressure and a pump having cylinders one for taking oil from the drip tank and delivering it to the clarifying device, and another cylinder for taking oil from the clarifying device and delivering it to the supply tank at higher elevation or pressure.

3. The combination with a drip tank of a clarifying device at a higher elevation than the tank comprising a stand-pipe for feed ing the device and a clean oil receptacle, a pump having one cylinder for taking oil from the drip tank and delivering it to the stand-pipe and another cylinderfor taking oil from the clarifying device and delivering it to the supply, and aconnection with the stand-pipe for discharging the overflow therefrom into the clean oil receptacle of the clarifying device.

4. An oil clarifying and circulation system comprising a drip tank, a. clarifying device at a higher elevation than the tank, a floating suction inlet to take oil from the top of the drip tank and a pump having one cylinder to take oil from the suction device and deliver it to the clarifying device and another cylinder for taking oil from the clarifying device and delivering it to the supply.

5. In fluid clarifying and circulation apparatus the combination with the drip receiving tank and a clarifying device, the drips being received at one end of'the tank, of a hinged floating suction device in the other end of the drip tank which takes liquid from just below the topsurface of the liquid in the drip tank, and pumping means for discharging it to the clarifying device.

6. In an apparatus of the class described the combination with a drip receiving tank, of a clarifying device, a floating suction to take liquid from the top surface of the liquid in the drip tank, a suction pipe to take liquid from the bottom of the tank and a pump with valved connections to take liquid either from the bottom of the liquid in the drip tank or from the floating sucti on and to deliver it to the clarifying device.

7. In apparatus of the class described the combination with a drip receiving tank and a clarifying device of means embodying a hinged floating suction device for taking liquid from the top of the liquid at one end of the drip tank and delivering it to the clarifying device, drip delivering means discharging into the tank at the opposite end remote from the suction device to provide a maximum precipitation space between the drip inlet and the suction device and pumping means for withdrawing liquid from the bottom of the drip tank and delivering it to the clarifying device.

8. In apparatus of the class described the combination with a drip receiving tank of a separator having a top surface overflow communicating with the drip tank and an overflow discharge for a stratum of heavier liquid at a lower elevation, a clarifying device at a higher elevation than the drip tank and pumping means for delivering liquid from the drip tank to the clarifying device and for removing liquid from the clarifying device.

9. In apparatus of the class described the combination with a drip receiving tank, of a clarifying device at a. higher elevation than the tank, a. settling tank and pumping means having a surface suction or a suction below the suction iiithe drip tank for de:

livering liquid therefrom to the clarifying device and to the settling tank and a. drawofi connection for discharging liquid from different levels in the settling tank to the apparatus through the drip tank.

10. In oil clarifyingand circulating apparatus the combination with a drip receiving tank of a clarifying device, a. settling tank and pumping means comprising a variable suction inlet in the drip tank for delivering liquid therefrom both to the settling tank and to the clarifying device and for taking fluid from the clarifying device for circulation from which it is returned by gravity to the-drip tank, and means for withdrawing liquid from the settling tank at different elevations and returning the liquid to the circulating system.

11. In an oil clarifying and circulating apparatus the combination with a drip receiving tankof a clarifying device at a higher elevation than thetank, a standpipe to give pressure to the clarifying device comprising a clean oil receptacle, an overflow from the standpipe to the clean oil receptacle of the clarifying device, means for delivering oil from the drip tank to the stand pipe and a gage connected with the standpipe to indicate the condition and cleanliness of the clarifying device and to constitute an indicia for operating the fluid delivering means.

12. In an apparatus of the class described the combination with a drip receiving tank of a clarifying device at a higher elevation than the tank, an overflow gravity discharge pipe from the clarifying device to the drip tank and a pump with means to take oil from the drip tank and to deliver it to the clarifying device and for taking oil from the clarifying device with less rapidity than the oil is delivered to the clarifying device whereby it will not be pumped dry.

13. In apparatus of the class described the combination with a. drip receiving tank, of a clarifying device at a higher elevation than the tank, comprising a filter and a receptacle in which the filter is located for containing the clarified oil from the filter, an outlet pipe connected with the receptacle above the filter and pumping means for delivering oil from the drip tank to the filter and for taking oil through the said pipe at a higher elevation than the filter.

1%. In oil clarifying and circulating apparatus the combination with a drip receiving tank of a supply tank, a settlings tank and pumping means having connection with the drip tank and having a discharge from. the pumping means, comprising two branches and each branch having two connections, one branch having connections to the supply tank and to the settling tank and the other branch having connections with the supply tank and the circulating apparatus.

15. In oil clarifying and circulating apparatus the combination with a drip receiving tank of a supply tank, a settling tank and a pump connected with the drip tank having a discharge with two valved branches each branch having two connections, one branch being connected through .a valved connection with the settling tank and with the gravity tank and the other branch being connected directly to the circulation discharge and through a valved connection to the gravity tank.

16. In an oil circulation system the combination with a drip receiving tank of a gravity supply tank, a settling tank and a pump having connection with the drip tank and having a discharge with two valved branches one branch being directly connected with the bottom of the gravity tank. and through a valved connection with the settling tank, and the other branch being connected to the circulating system and through a valved pipe which extends through the bottom of the gravity tank, to a point above the bottom of the gravity tank.

17. The combination with an oil clarifying and circulating system comprising a clean oil supply elevated or under pressure, a settling chamber and a dirty oil supply to which the clean oil gravitates, with means for clarifying the dirty oil and means for taking oil from the dirty oil supply and de-' livering it either to the clarifying device, to the clean oil supply, directly to the circulating system or to a settling chamber, from each of which devices or sources of supply the oil may gravitate to the dirty oil sup p y- I 18. The combination with an oil supply receptacle, of a drip-receiving receptacle, a clarifying device at an elevation between the supply and drip receptacles, and two fluid pump devices working in unison, one taking oil from the drip receptacle and delivering it to the clarifying device, and the other pumping device taking oil from the clarifying device and discharging it into the supply receptacle.

19. An oil clarifying and circulating system, and apparatus, comprising a drip receptacle, a clarifying device at a higher ele- 100 vation than the: receptacle, and a pumping device having one pumping means to take oil from the drip receptacle and deliver it to the clarifying device, and another pumping I means for taking oil from the clarifying 106 device and delivering it as a supply for the said system.

20. An oil clarifying and circulating system and apparatus, comprising a drip receptacle, a clarifying device at a higher elevation than the drip receptacle, and two fiuidpumping devices working in unison, one taking oil from thedrip receptacle and delivering it to the clarifying device and the other fluid pumping device taking oil from the clarifying device and delivering it as a supply for the system.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, on this 29th day of August, A. D. 1914.

WILLIAM L. MQRRIS.

Witnesses:

J. R. MATLAGK, H. D. WEAVER, 

